From: Filip Kokosinski <[email protected]> This adds support for a basic LiteX-based SoC with a mor1kx soft CPU.
Signed-off-by: Filip Kokosinski <[email protected]> Signed-off-by: Mateusz Holenko <[email protected]> --- MAINTAINERS | 1 + arch/openrisc/boot/dts/or1klitex.dts | 49 +++++++++++++++++++++++ arch/openrisc/configs/or1klitex_defconfig | 18 +++++++++ 3 files changed, 68 insertions(+) create mode 100644 arch/openrisc/boot/dts/or1klitex.dts create mode 100644 arch/openrisc/configs/or1klitex_defconfig diff --git a/MAINTAINERS b/MAINTAINERS index c24a37833e78..e84b2cb4c186 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9500,6 +9500,7 @@ S: Maintained F: include/linux/litex.h F: Documentation/devicetree/bindings/*/litex,*.yaml F: drivers/tty/serial/liteuart.c +F: arch/openrisc/boot/dts/or1klitex.dts LIVE PATCHING M: Josh Poimboeuf <[email protected]> diff --git a/arch/openrisc/boot/dts/or1klitex.dts b/arch/openrisc/boot/dts/or1klitex.dts new file mode 100644 index 000000000000..63399398002d --- /dev/null +++ b/arch/openrisc/boot/dts/or1klitex.dts @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * LiteX-based System on Chip + * + * Copyright (C) 2019 Antmicro Ltd <www.antmicro.com> + */ + +/dts-v1/; +/ { + compatible = "opencores,or1ksim"; + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&pic>; + + aliases { + serial0 = &serial0; + }; + + chosen { + bootargs = "console=liteuart"; + }; + + memory@0 { + device_type = "memory"; + reg = <0x00000000 0x10000000>; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + cpu@0 { + compatible = "opencores,or1200-rtlsvn481"; + reg = <0>; + clock-frequency = <100000000>; + }; + }; + + pic: pic { + compatible = "opencores,or1k-pic"; + #interrupt-cells = <1>; + interrupt-controller; + }; + + serial0: serial@e0001800 { + device_type = "serial"; + compatible = "litex,liteuart"; + reg = <0xe0001800 0x100>; + }; +}; diff --git a/arch/openrisc/configs/or1klitex_defconfig b/arch/openrisc/configs/or1klitex_defconfig new file mode 100644 index 000000000000..0e4c2e74451c --- /dev/null +++ b/arch/openrisc/configs/or1klitex_defconfig @@ -0,0 +1,18 @@ +CONFIG_BLK_DEV_INITRD=y +CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y +CONFIG_BUG_ON_DATA_CORRUPTION=y +CONFIG_CC_OPTIMIZE_FOR_SIZE=y +CONFIG_CROSS_COMPILE="or32-linux-" +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_EMBEDDED=y +CONFIG_HZ_100=y +CONFIG_INITRAMFS_SOURCE="openrisc-rootfs.cpio.gz" +CONFIG_OF_OVERLAY=y +CONFIG_OPENRISC_BUILTIN_DTB="or1klitex" +CONFIG_PANIC_ON_OOPS=y +CONFIG_PRINTK_TIME=y +CONFIG_SERIAL_LITEUART=y +CONFIG_SERIAL_LITEUART_CONSOLE=y +CONFIG_SOFTLOCKUP_DETECTOR=y +CONFIG_TTY_PRINTK=y -- 2.23.0
